29 entries under noun topic. ×
| impossibility(certainty, hopelessness) | |
| unfeasibility | |
| unlikelihood | |
| impossible(certainty, practicability, workableness) | |
| certainty | |
| criterion(test, gauge) | |
| doubtfulness | |
| dubiousness | |
| implausibility | |
| inability | |
| plan | |
| absurdity | |
| choice | |
| contradiction | |
| difference | |
| disbelief | |
| distrust | |
| helplessness | |
| impossibilities | |
| impracticability |
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| APA | Smart Define. (2015). possibility thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/possibility/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "possibility thesaurus" https://smartdefine.org/possibility/thesaurus/antonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, possibility thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/possibility/thesaurus/antonyms>. |
| MLA | Smart Define. "possibility thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/possibility/thesaurus/antonyms> |